CN101807709B - Secondary battery with protection circuit module - Google Patents

Secondary battery with protection circuit module Download PDF

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Publication number
CN101807709B
CN101807709B CN201010116360XA CN201010116360A CN101807709B CN 101807709 B CN101807709 B CN 101807709B CN 201010116360X A CN201010116360X A CN 201010116360XA CN 201010116360 A CN201010116360 A CN 201010116360A CN 101807709 B CN101807709 B CN 101807709B
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CN
China
Prior art keywords
plain
secondary cell
plain battery
lug plate
upper shell
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CN201010116360XA
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Chinese (zh)
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CN101807709A (en
Inventor
高锡
朴锡纶
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Samsung SDI Co Ltd
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Samsung SDI Co Ltd
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Publication of CN101807709A publication Critical patent/CN101807709A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
    • H01M50/147—Lids or covers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • H01M50/291—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by their shape
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/509—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the type of connection, e.g. mixed connections
    • H01M50/512—Connection only in parallel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/514—Methods for interconnecting adjacent batteries or cells
    • H01M50/516—Methods for interconnecting adjacent batteries or cells by welding, soldering or brazing
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Battery Mounting, Suspending (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Protection Of Static Devices (AREA)

Abstract

A secondary battery including a first bare cell, a second bare cell disposed to face at least a portion of the first bare cell, and a protection circuit module including a circuit board having an electrical circuit device mounted thereon and at least one connection tab between the first and second bare cells, the connection tab electrically connecting the circuit board to the first and second bare cells.

Description

Secondary cell with protective circuit module
Technical field
Each embodiment relates to a kind of secondary cell with protective circuit module.
Background technology
Along with the fast development of electronics, communication, computer industry, the use of portable type electronic product also increases thereupon.A lot of portable electric appts adopt secondary (rechargeable) battery as power supply.
Group type secondary cell is widely used.Typical group type secondary cell has a kind of structure, in this structure, is combined into a unit as one or more plain batteries of power supply and the protective circuit module (PCM) of the charge/discharge of controlling plain battery.
Summary of the invention
Therefore, each embodiment is devoted to a kind of secondary cell with protective circuit module, and it has overcome the one or more problems that cause because of the limitation of prior art and shortcoming basically.
Therefore, an embodiment is characterised in that a kind of secondary cell with protective circuit module is provided, being electrically connected between its protective circuit module that keeps secondary cell in simple, firm and reliable mode and each plain battery.
At least one above and other feature and advantage can realize by a kind of secondary cell is provided; this secondary cell comprises the first plain battery, the second plain battery and protective circuit module; the second plain battery is configured at least a portion in the face of described the first plain battery; the protective circuit module comprises that circuit board connects lug plate with being connected; described circuit board has the circuit devcie that is mounted thereon; described at least one connection lug plate is between described the first and second plain batteries, and described connection lug plate is electrically connected to described the first and second plain batteries with described circuit board.
Described connection lug plate can comprise the straddle between described the first and second plain batteries.
The described straddle of described connection lug plate can comprise the sweep that all contacts with described the first and second plain batteries.
Described sweep can be between described the first and second plain batteries, and can be by strain.
Described connection lug plate can comprise supporting leg, and this supporting leg keeps the interval between described circuit board and described the first and second plain batteries.
Described connection lug plate can comprise nickel.
Described connection lug plate can comprise the material that is coated with gold or copper.
Described connection lug plate can comprise clad material.
Described clad material can be the compound of elastomeric material and electric conducting material.
Described elastomeric material can comprise nickel, and described electric conducting material can comprise copper.
Described protective circuit module can comprise that two connect lug plate, and each of two connection lug plates all is electrically connected to described circuit board described the first and second plain batteries.
Described secondary cell can further comprise coupling member, it is disposed between described the first and second plain batteries, wherein said coupling member is coupled to described the first and second plain batteries, and limits space between described the first plain battery and described the second plain battery to admit described connection lug plate.
Described coupling member can comprise the foam band.
Described secondary cell can further comprise the auxiliary connection sheet, and this auxiliary connection sheet is electrically connected to described the first plain battery and described the second plain battery.
Described auxiliary connection sheet can be soldered to described the first and second plain batteries.
Described the first and second plain batteries all can comprise a tank separately, each tank can comprise base plate and from the upwardly extending side wall construction of described base plate, and the part of the described side wall construction of described the first plain battery is configured to the part in the face of the described side wall construction of described the second plain battery.
The described side wall construction of described the first and second plain batteries described tank separately can comprise two relative broad side walls, and described connection lug plate can be between one of described broad side walls of the described tank of one of described broad side walls of the described tank of described the first plain battery and described the first plain battery.
Described secondary cell can further comprise upper shell, and this upper shell covers the described circuit board of described protective circuit module, and the described circuit board of wherein said protective circuit module is coupled to described upper shell.
One of described circuit board and described upper shell can comprise ledge, and another the comprised slot in described circuit board and described upper shell is to admit described ledge.
Described secondary cell can further comprise the label around described the first and second plain batteries.
Described the first plain battery and described the second plain battery be in parallel the electrical connection relative to each other.
Described secondary cell can further comprise upper shell and lower house; this upper shell covers described protective circuit module; it is relative with described upper shell that this lower house is configured to; wherein said upper shell comprises that two are strengthened leg; this is strengthened leg and extends towards described lower house; and described lower house comprises two reinforcing props, and this reinforcing prop extends and be coupled to the described reinforcement leg of described upper shell towards described upper shell.
The described reinforcement leg of described upper shell and the described reinforcing prop of described lower house all can be included in the ledge that extends between described the first and second plain batteries separately.
Description of drawings
Describe exemplary embodiment in detail by the reference accompanying drawing, above and other feature of the present invention and advantage for those of ordinary skills with more obvious, wherein:
Fig. 1 shows the perspective view according to the secondary cell of an embodiment;
Fig. 2 shows the decomposition diagram of the secondary cell of Fig. 1;
Fig. 3 shows the perspective view with label abridged secondary cell of Fig. 1;
Fig. 4 shows the end view with upper shell and lower house abridged secondary cell of Fig. 3; And
Fig. 5 shows two second perspective views that connect lug plate in the secondary cell that is included in Fig. 2.
Embodiment
Submit on February 17th, 2009 full content that is called the korean patent application 10-2009-0012807 of " secondary cell with protective circuit module " in Korea S Department of Intellectual Property, name and incorporate by reference this paper into.
With reference to accompanying drawing, hereinafter exemplary embodiment will be described more fully; But they can be implemented as various multi-form and should not be interpreted as being limited to the embodiment that this paper proposes.And to those skilled in the art, providing of these embodiment makes the disclosure abundant and complete, and passed on scope of the present invention comprehensively.
In the accompanying drawings, show for clear, each layer and each regional size may be exaggerated.Will also be appreciated that when mention the layer or element be positioned at another the layer or basic unit " on " time, it can be located immediately at other the layer or above basic unit, perhaps also may have the intermediate layer.Further, be understandable that, when mention layer or element be positioned at another layer or basic unit " below " time, it can be located immediately at below other layer or basic unit, and also may have one or more intermediate layers.In addition, will also be appreciated that when mention layer be positioned at two-layer " between " time, it can be the sole layer between two-layer, perhaps also may have one or more intermediate layers.Similar Reference numeral represents similar element all the time.
More fully describe embodiment referring now to accompanying drawing, shown in the accompanying drawings exemplary embodiment.Fig. 1 shows the perspective view according to the secondary cell of an embodiment.Fig. 2 shows the decomposition diagram of the secondary cell of Fig. 1.Fig. 3 shows the perspective view with label abridged secondary cell of Fig. 1.Fig. 4 shows the end view with upper shell and lower house abridged secondary cell of Fig. 3.
Referring to figs. 1 to Fig. 4, comprise the first plain battery 110, the second plain battery 120, coupling member 130, protective circuit module (PCM) 140, upper shell 160, lower house 170 and label 180 according to the secondary cell 100 of an embodiment.Secondary cell 100 may further include for example insulating tape 128, auxiliary connection sheet 129 and adhesive tape 179.
The first plain battery 110 as power supply can comprise electrode assemblie (not shown), tank 111 and cap assemblies 114, and tank 111 has the opening (not shown) and admits electrode assemblie, the opening of cap assemblies 114 hermetically sealed cans 111 by this opening.Although do not show, electrode assemblie can form by coiling positive electrode plate, negative electrode plate and the dividing plate that is inserted between these two battery lead plates.Positive electrode lug plate and negative electrode lug plate can be connected to respectively positive electrode plate and negative electrode plate.
Tank 111 can comprise the metal shell with approximate rectangular shape.This tank 111 can comprise base plate 112 and side wall construction 113, and base plate 112 has approximate rectangular shape, and side wall construction 113 extends upward from the edge of base plate 112.Side wall construction 113 can comprise two narrow sidewall 113b that relative broad side walls 113a is relative with two with less width with relatively large width.Tank 111 can have the space of admitting electrode assemblie and electrolyte, and is electrically connected to the positive electrode lug plate to be used as plus end.Tank 111 for example can utilize aluminium or its alloy to produce by forming technology (for example, metal deep draw).
Cap assemblies 114 can comprise cover plate 115 and electrode terminal 116.Cover plate 115 can have the opening (not shown) in approximate rectangular shape and salable tank 111.Cover plate 115 can comprise conductive metallic material, for example, and aluminium or its alloy.Cover plate 115 can be electrically connected to the positive electrode lug plate of electrode assemblie to be used as plus end.Electrode terminal 116 can be arranged on the approximate center part of cover plate 115 and pass cover plate 115.Electrode terminal 116 can be by the insulation spacer 117 and cover plate 115 insulation of surrounding electric poles terminal 116.Electrode terminal 116 can be electrically connected to the negative electrode lug plate of electrode assemblie to be used as negative terminal.Although the equal joining cover plate of each embodiment 115 is described as plus end and electrode terminal 116 embodiment as negative terminal, these embodiment are not limited to this.It should be understood that cover plate 115 can be used as negative terminal and electrode terminal 116 can be used as plus end according to the connection status of the positive and negative electrode lug plate of cover plate 115 and electrode terminal 116 and electrode assemblie.
The second plain battery 120 can have and the first essentially identical structure of plain battery 110, therefore will omit the detailed description of its repetition.The first plain battery 110 and the second plain battery 120 be in parallel the electrical connection relative to each other.One of two relative broad side walls 123a of the second plain battery 120 can be arranged in the face of one of two relative broad side walls 113a of the first plain battery 110.Insulating tape 128 can be corresponding to a part that is arranged on circuit devcie (not shown) on protective circuit module 140 and is attached to the cover plate 125 of the part of cover plate 115 of the first plain battery 110 and the second plain battery 120.Insulating tape 128 can be with circuit devcie and the first plain battery 110 and second plain battery 120 insulation of protective circuit module 140.The base plate 112 of the first plain battery 110 and the base plate 122 of the second plain battery 120 can be electrically connected to each other by auxiliary connection sheet 129, and this auxiliary connection sheet is made by electric conducting material, for example nickel.Can adopt for example mode of resistance welded, auxiliary connection sheet 129 is connected to the base plate 112 of the first plain battery 110 and the base plate 122 of the second plain battery 120.Auxiliary connection sheet 129 can be electrically connected to the positive electrode of the first plain battery 110 and the positive electrode of the second plain battery 120, improves simultaneously the mechanical connection between the first plain battery 110 and the second plain battery 120.
Coupling member 130 can be inserted between the first plain battery 110 and the second plain battery 120 to connect two plain batteries 110 and 120.Coupling member 130 can comprise foam band (for example, the double sided foam band), but each embodiment is not limited to this.The relative broad side walls 113a of the first plain battery 110 and the second plain battery 120 and 123a can be separated from one another by coupling member 130.Through hole 131 can be arranged on the core of coupling member 130.Between the phase of expansion of the first plain battery 110 and the second plain battery 120, through hole 131 can be used as the space of admitting dilation.
Protective circuit module 140 can comprise that circuit board 141, first connects lug plate 145 and is connected the second connection lug plate 150.Protective circuit module 140 can be controlled the integrated operation (for example, charge/discharge) of secondary cell 100.
Circuit board 141 can comprise the printed circuit board (PCB) that for example has wire pattern.Through hole 142 can be arranged on the core of circuit board 141, is connected to the electrode terminal 116 of the first plain battery 110 and the electrode terminal 126 of the second plain battery 120 to connect lug plate 145 with first.Combined process (for example resistance welded) can be carried out in through hole 142, is connected to the electrode terminal 116 of the first plain battery 110 and the electrode terminal 126 of the second plain battery 120 to connect lug plate 145 with first.Circuit board 141 can comprise first surface 141a and the second surface 141b relative with first surface 141a.First connects the core that lug plate 145 can be coupled to first surface 141a, and second connects the end that lug plate 150 can be coupled to first surface 141a.First surface 141a can separate with the cover plate 115 and 125 of the first plain battery 110 and the second plain battery 120, and faces the cover plate 115 and 125 of the first plain battery 110 and the second plain battery 120.The circuit devcie (not shown) can be installed on the first surface 141a of circuit board 141.Circuit devcie for example can comprise control integration circuit (controlling IC), charge and discharge switch, Thermal Cutoffs (for example, PTC device) and other.Circuit devcie can be by being attached to the first plain battery 110 and the second plain battery 120 cover plate 115 and 125 insulating tape 128 and the first plain battery 110 and the second plain battery 120 electric insulations.The second surface 141b of circuit board 141 can have a plurality of outside terminals 143 that are electrically connected to external loading for example or capacitor.The second surface 141b of circuit board 141 also can comprise two slot 141c and 141d, is used for connecting circuit board 141 and upper shell 160.Two slot 141c and 141d can be arranged on the end of the second surface 141b of circuit board 141.
First connects the first surface 141a that lug plate 145 can be electrically connected to circuit board 141, simultaneously, the first connection lug plate 145 can be electrically connected to the electrode terminal 116 of the first plain battery 110 and the electrode terminal 126 of the second plain battery 120 by for example resistance welded or similar fashion.This welding can be carried out in the through hole 142 of circuit board 141.First connects lug plate 145 can be electrically connected to the electrode terminal 116 of the first plain battery 110 and the electrode terminal 126 of the second plain battery 120, and is electrically connected to simultaneously two electrode terminals 116 and 126 and circuit board 141.
Fig. 5 shows two second detailed views that connect lug plate 150.Referring to Fig. 5 and Fig. 4, two second connect the end that lug plate 150 can be arranged on circuit board 141.Second connects lug plate 150, and each all can form by folding conductive plate member, and circuit board 141 can be electrically connected to the tank 111 and 121 of the first plain battery 110 and the second plain battery 120.
Second connects lug plate 150, and each all can comprise substrate 151, and the supporting leg 152 and the straddle 153 that extend folding from substrate 151.Substrate 151 can be approximate rectangular plate.Substrate 151 can be electrically connected to the first surface 141a of circuit board 141.
Supporting leg 152 can and extend away from substrate 151 with respect to the angle of folding approximately 90 degree of substrate 151.The end 152a of supporting leg 152 can contact the cover plate 125 of the second plain battery 120.Supporting leg 152 can be constructed such that circuit board 141 and the first plain battery 110 and the second plain battery 120 separate preset distance.
Straddle 153 can and extend away from substrate 151 with respect to the angle of folding approximately 90 degree of substrate 151.Straddle 153 can comprise from the first extension 154 that substrate 151 extends, bend to the sweep 155 of general triangular and second extension 156 of extending from sweep 155.Sweep 155 can be inserted into the space that is limited by the first plain battery 110 and the second plain battery 120.The top 155a of sweep 155 can contact and be electrically connected to one of broad side walls 123a of the second plain battery 120.The bottom 155b of sweep 155 can contact and be electrically connected to one of broad side walls 113a of the first plain battery 110.For the broad side walls 113a that firmly keeps sweep 155 and the first plain battery 110 and the second plain battery 120 and the connection status between 123a, the height H of sweep 155 can be greater than the interval D between the first and second plain batteries 110 and 120.The second connection lug plate 150 integral body or its a part of (for example, sweep 155) can be formed by elastomeric material.Sweep 155 can be by strain when being inserted into the space that is limited by the first plain battery 110 and the second plain battery 120, make the height H of sweep 155 approximate or greater than the interval D between the first plain battery 110 and the second plain battery 120, realize thus sweep 155 and the broad side walls 113a of the first plain battery 110 and the second plain battery 120 and firm connection the between 123a.When straddle 153 was inserted between the first plain battery 110 and the second plain battery 120, circuit board 141 can be electrically connected to the tank 111 and 121 of the first plain battery 110 and the second plain battery 120, thereby simplified the manufacture process of battery.
Second connects lug plate 150 can comprise for example nickel, but each embodiment is not limited to this.In order to improve the electric conductivity of the second connection lug plate 150, second connects lug plate 150 can comprise the nickel that for example is coated with gold or copper.Second connects lug plate 150 also can comprise clad material (for example nickel) and electric conducting material (for example copper).Connect although described two the embodiment that lug plate 150 is electrically connected to the circuit board 141 of protective circuit module 140, each embodiment is not limited to this.It should be understood that; two connect that 141, two of circuit boards that one of lug plates 150 can be electrically connected to protective circuit module 140 connect lug plates 150 another can be the pseudo-lug plate that for example is not electrically connected to the circuit board 141 of protective circuit module 140.
Again referring to Fig. 1 to Fig. 3, upper shell 160 can cover and protect protective circuit module 140.Upper shell 160 can comprise cover plate 161, from the edge of cover plate 161 to the sidewall 163 of downward-extension and never comprise that the edge of sidewall 163 strengthens legs 165 and 166 to first and second of downward-extension.
Cover plate 161 can cover the first plain battery 110 of coupled member 130 connections and the cover plate 115 and 125 of the second plain battery 120.Through hole 162 can be formed in cover plate 161.The outside terminal 143 of protective circuit module 140 can expose by through hole 162.The inner surface of cover plate 161 can be faced the second surface 141b of the circuit board 141 of protective circuit module 140.Although do not show, cover plate 161 can further comprise two ledges corresponding to the slot 141c on the circuit board 141 that is formed on protective circuit module 140 and 141d.Can be inserted and fixed to slot 141c and the 141d of circuit board 141 towards circuit board 141 outstanding ledges.When the ledge of upper shell 160 was inserted and fixed to the slot 141c of circuit board 141 and 141d, circuit board 141 can firmly be connected to the first and second plain batteries 110 and 120.Be formed on upper shell 160 and slot 141c and 141d are formed on embodiment on circuit board 141 although described ledge, each embodiment is not limited to this.Namely, ledge can be formed on circuit board 141, and slot 141c and 141d can be formed on upper shell 160.Replacedly, ledge and slot can be formed on upper shell 160, and corresponding slot can be formed on circuit board 141 with corresponding ledge.
The end of sidewall 163 can contact the cover plate 115 and 125 of the first and second plain batteries 110 and 120 to support upper shell 160.Upper shell 160 can further comprise two extensions 164 from the outward flange that comprises sidewall 163 to downward-extension.Extension 164 can be configured to cover tank 111 and 121 broad side walls 113a and the top of 123a of the first and second plain batteries 110 and 120.
First and second strengthen leg 165 and 166 can be configured to cover the tank 111 of the first and second plain batteries 110 and 120 and 121 narrow sidewall 113b and 123b.Groove 165a and 166a can be respectively formed at the end of the first and second reinforcement legs 165 and 166.The first and second ledge 165b and 166b can be respectively formed at first and second and strengthen the inner surface of leg 165 and 166, and can be inserted into by the first and second plain batteries 110 and 120 spaces that limit.The first and second reinforcement legs 165 and 166 can be strengthened the connection between the first and second plain batteries 110 and 120.
Lower house 170 can comprise base plate 171, upwardly extending the first and second reinforcing props 173 and 174 from upwardly extending two extensions 172, two of base plate 171 relative edges and from two other relative edge of base plate 171.Base plate 171 can be configured to cover the first and second plain batteries 110 of coupled member 130 connections and 120 base plate 112 and 122.Base plate 171 can be attached to by adhesive tape 179 base plate 112 and 122 of the first and second plain batteries 110 and 120.Extension 172 can be configured to cover tank 111 and 121 broad side walls 113a and the bottom of 123a of the first and second plain batteries 110 and 120.The first and second reinforcing props 173 and 174 can be configured to cover the tank 111 of the first and second plain batteries 110 and 120 and 121 narrow sidewall 113b and 123b.Can form respectively flange portion 173a and 174a in the end of the first and second reinforcing props 173 and 174.The flange portion 173a of the first reinforcing prop 173 can be inserted and fixed to first of upper shell 160 and strengthen in the groove 165a of leg 165.The flange portion 174a of the second reinforcing prop 174 can be inserted and fixed to second of upper shell 160 and strengthen in the groove 166a of leg 166.The first and second ledge 173b and 174b can be respectively formed at the inner surface of the first and second reinforcing props 173 and 174, and insert by in the first and second plain batteries 110 and 120 spaces that limit.The first and second reinforcing props 173 and 174 can be strengthened the connection between the first and second plain batteries 110 and 120 together with first and second of upper shell 160 is strengthened leg 165 and 166.
Label 180 can be attached to the first and second plain batteries 110 and 120 with the side wall construction 113 and 123 around the first and second plain batteries 110 and 120.The extension 164 of upper shell 160 and first and second strengthen legs 165 and 166 and extension 172 and first and second reinforcing props 173 and 174 of lower house 170 also can be covered by label 180.
According to an embodiment, in order to increase the capacity of battery, secondary cell can be configured with a plurality of plain batteries that are electrically connected to single protective circuit module.In this kind secondary cell, firm and to keep reliably being electrically connected between protective circuit module and each plain battery be very important.According to an embodiment; the protective circuit module can comprise the connection lug plate that is inserted into two spaces between plain battery; this connection lug plate is connected to two plain batteries with the protective circuit module, guarantees thus firm between protective circuit module and plain battery and is connected reliably.In addition, the use of this connection lug plate can not need to have simplified thus the manufacture process of secondary cell in the combined process that is connected between protective circuit module and plain battery (for example welding).
Although herein disclosed is illustrative examples, and adopted particular term, they only are used and explain under the implication of summarizing and describing, are not the purposes for restriction.Therefore, one of ordinary skill in the art will appreciate that and to make the change on various forms and details in the situation that do not deviate from the spirit and scope of the present invention that claims propose.

Claims (18)

1. secondary cell comprises:
The first plain battery;
The second plain battery, it is configured at least a portion in the face of described the first plain battery; With
The protective circuit module; comprise that circuit board connects lug plate with being connected; described circuit board has circuit devcie mounted thereto; described at least one connection lug plate is between described the first and second plain batteries; described connection lug plate is electrically connected to described the first and second plain batteries with described circuit board; wherein said connection lug plate comprises the straddle between described the first and second plain batteries, and the described straddle of described connection lug plate comprises the sweep that all contacts with described the first and second plain batteries.
2. secondary cell as claimed in claim 1, wherein said sweep is between described the first and second plain batteries and by strain.
3. secondary cell as claimed in claim 1, wherein said connection lug plate comprises supporting leg, this supporting leg keeps the interval between described circuit board and described the first and second plain batteries.
4. secondary cell as claimed in claim 1, wherein said connection lug plate comprises nickel.
5. secondary cell as claimed in claim 1, wherein said connection lug plate comprises the material that is coated with gold or copper.
6. secondary cell as claimed in claim 1, wherein said connection lug plate comprises clad material, and this clad material is the compound of elastomeric material and electric conducting material.
7. secondary cell as claimed in claim 6, wherein said elastomeric material comprises nickel, and described electric conducting material comprises copper.
8. secondary cell as claimed in claim 1, wherein said at least one quantity that connects lug plate is two, these two each that connect lug plates all are electrically connected to described circuit board described the first and second plain batteries.
9. secondary cell as claimed in claim 1, further comprise coupling member, it is arranged between described the first and second plain batteries, wherein said coupling member is coupled to described the first and second plain batteries, and limits the space that being used between described the first plain battery and described the second plain battery admit described connection lug plate.
10. secondary cell as claimed in claim 1, further comprise the auxiliary connection sheet, and this auxiliary connection sheet is electrically connected to described the first plain battery and described the second plain battery.
11. secondary cell as claimed in claim 10, wherein said auxiliary connection sheet is soldered to described the first and second plain batteries.
12. secondary cell as claimed in claim 1, wherein
Described the first and second plain batteries include tank separately,
Each tank includes base plate and from the upwardly extending side wall construction of described base plate, and
The part of the described side wall construction of described the first plain battery is configured to the part in the face of the described side wall construction of described the second plain battery.
13. secondary cell as claimed in claim 12, the described side wall construction of wherein said the first and second plain batteries described tank separately comprises two relative broad side walls, and described connection lug plate is between one of described broad side walls of the described tank of one of described broad side walls of the described tank of described the first plain battery and described the second plain battery.
14. secondary cell as claimed in claim 1 further comprises upper shell, this upper shell covers the described circuit board of described protective circuit module, and the described circuit board of wherein said protective circuit module is coupled to described upper shell.
15. secondary cell as claimed in claim 14, one of wherein said circuit board and described upper shell comprise ledge, and another in described circuit board and described upper shell comprises that slot is to admit described ledge.
16. secondary cell as claimed in claim 1, wherein said the first plain battery and described the second plain battery be in parallel the electrical connection relative to each other.
17. secondary cell as claimed in claim 1; further comprise the upper shell that covers described protective circuit module and be arranged to the lower house relative with described upper shell; wherein said upper shell comprises two reinforcement legs that extend towards described lower house, and described lower house comprises two reinforcing props that extend and be coupled to the described reinforcement leg of described upper shell towards described upper shell.
18. secondary cell as claimed in claim 17, the described reinforcement leg of wherein said upper shell and the described reinforcing prop of described lower house include the ledge that extends separately between described the first and second plain batteries.
CN201010116360XA 2009-02-17 2010-02-11 Secondary battery with protection circuit module Active CN101807709B (en)

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JP5148643B2 (en) 2013-02-20
KR101023886B1 (en) 2011-03-22
EP2219245B1 (en) 2012-05-09
EP2219245A1 (en) 2010-08-18
JP2010192426A (en) 2010-09-02
ATE557430T1 (en) 2012-05-15
KR20100093737A (en) 2010-08-26
US8435656B2 (en) 2013-05-07
CN101807709A (en) 2010-08-18
US20100209743A1 (en) 2010-08-19

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